Silo.



F.1.FRIEDLE|N.

ILO.

1,275,148. APPLICATION FILED FEB. 9, I9I8. Patented Aug. 6, 1918.

2 SHEETS-SHEET I.

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F. I. FRIEDLEIN.

slLo. APPLICATION FlLED FEB. 9. l9l8.

1,275,148. Patented Aug. 6, 1918.

2 SHEETS-SHEET 2.

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4To all whom it may concern "narran lsinuses raaajnr @mmm-:

nani) J. FRIEDLEIN, or GUTTENBERG, IOWA, AssIGNoRor oNnHALF To Louis SCHROEDER, OF lGrU'J3'.IIENBERG, IOWA.

sILo.

Be it known'that I, FRED J. FRiiiDLEiN, a citizen of the United States, residing atGut'# tenberg, in the county of Clayton andj State of Iowa, have invented certainnewand useful Improvements in Silos; and I do declare l, the following to be a full, clear, and exactV description of the invention, such Vas will enable othersskilled in the artto whichv it.

appertains to makeaiiduse the-same;

. j This invention relates to'silos, and itvre-v latesfinore particularlyto ,an improved enf silage cove Oneof the objects of .this invention( g;

to provide an improved ensilage cover which fits snugly lagainst the l vertical Vsides of Pthe silo Vand rests upon the ensilage for preventing the moisture and gases from rising and .escaping fro1n the' massof ensilage, thereby retaining', the heat in the ensilangne'v and preventing the saine from freezing and adhering to'the walls of thesilo and subsequentlyfbeing wasted. p- V Another objectof the invention -is to l,provide for supplying the greatest amount of g Yprotection to the ensilage vat thevedge. of

the mass or at thewall of the silo.A

- Another object Ais to provide an limproved ensilage cover, t hat .is col lapsilole,jsot as'to obtain the maximum convenience in placing..

, it in and removing it froin a silo'through the ports yor doors thereof.

Another Object is tolprovide at improved" ensilage cover that is adjustable so as .to completely cover the ensilage silos of1d1f- .ferent horizontal areas.; Another object is` to providean ensilage cover that collapses automatically when; the

saine israised from the ensilage by the` windlass or the like'device from withoutthe silo.

Another object is to provide a device ofy this character which combines vthe attainment of vthe foregoing objects with` vsini-v plicity, convenience,` comparative ineXp'en-` 'weathen siveness, thoroughp'racticability and maxi- 4 mum eiiiciency.

Other objects and advantages may become apparent to persons who read the following details of description in lconnection'with the vaccoinpanying' drawings in' which Specification of Letters Patent.

ensilage Cover the silo; g i

partly in elevation illustrating my. improved Fig. Y2is an enlarged vert-ical sectional Patented Aug'. o, 191s. Application filed February 9, 1918. Serial No. 216,415. i

asv applied yto fthe ensilage Figuremlv is aview partly infsectionand i Fig'.- 3 `is, an enlargedhorizontal.,sectional fs f View through fthestandard and other; supportingelements ofthe cover, the main bodyv l of the cover beingyshown in plan;. g 1., I Fig. .4L isa vertical sectional v,viewg-t'aken substantially along lthe line lf-Lof {Fig. 3.; j.; i

Fig; 5 is `affragmental detailview illustratinga portion of the coverfin elevation; Fig. 6 is avertical sectional view taken '..substantially alongthe line 6-'6 of Fig. 3, "i: andv Fig. 7 isa stillmorefenlarged sectional viewtalienv alonglthefline of Fig. 3.

According ensilage adjacent to.` the `:wallv of theffsilo,4 which is subjectto freezing, and the depthf. to which ensilagev freezes varies yfromfa tion of an inch to ai number of inchesQWhen-g, t. i'

ensilage is thus frozen,` it islnot in :condition f.

to be fed to stock,` and moreover,I it is trouto the experienceiof men have used silos, .it is'only the parthof the blesome and involves waste of' .,time in .-1

';.`dislodgiiig the frozen ensilage from the wall of the silo.'v Therefore, when'thus `frozen,"a

of the silo untilfit subsequently thaws, falls,

V.portion Vof the ensila'geadheresto the Awall".

resulting in a very considerable waste'of v animal food. In order to prevent this waste,

I provide an ensilagecover'which is imper-f' vious to moisture andv tothe heated gases L Ywhich rise in the mass of ensilage, this'cover fitting snugly agaiiist'the wall or wallsof the silo and confining such heated i'noistureI and gases within the `mass of ensilage '.95

.thereby eifectually preventing freezing o thel vensilagev .in fthev most severe `winter Y Referring'now to the drawings detail, i

in which similar reference charactersv correspond withvsimilar parts throughout the -several views, the' silo 10 may be of any ordinary construction, and therefore, it is not described in detail further than to refer to the ports 11 which are provided with any suitable closures 12. The eiisilage is indicated at 13, and the ensilage cover is indicated as a whole at 14 in Fig. 1 of the drawings. l

The cover 14 may have a rope or other flexible element 15 secured thereto, and this flexible element may pass over pulleys or sheave wheels 16 and 17 and thence to a windlass indicated at 18. A handle 19 may be provided for turning the windlass and thereby raising and loweringthe cover 14, and a suitable pawl and ratchet mechanism 20 may be provided for holding the cover above the' lower portion 11 so that the en'- silage material mayfbe placed .inthe silo without interference by the ensilage cover.

In 'order that the en'silage cover may be placed in previously built silos without the necessity'for altering these silos, 1 find 'it expedient, convenient and advantageous to construct. the covers so that they vmay be collapsed asy indicated iii Fig. 2. 1n thus' constructing the ensilage covers, lfp'rovide a central post or standard 21, and to the lower end of this standard I secure a hub 'or bearing member 22. A plurality of bars or stays 23 are'pivotally connected at 24 to the hub,. 22 and extend radially from the latter when the device is open or extended, but depend from the hub 22 when the de-v vice i`s` collapsed. The pivotal Yconnections 24 may be in the form of hinges constructed from flexible materials such as canvas or leather, or they may be made of such metal that is not detrimentally affected by the vmoisture which might escape around the cover. l n

Upon the barsor stays 23 1 secure a sheet of flexible fabric 25 such as rubberized or ,oiled clot-h or other material which .is imperviousrto the rising moisture and gases',

the copperedV or galvanized nails or other suitable fastening elements 26 being employed for securing the flexible sheet to the .bars

vthe strip 28, extends a comparatively short distance inward from the ends of the bars 23, as it is only necessary to apply the greatest amount-of protection around the edge of the mass ofrensilage, the single-thickness of oiled or rubberized canvas 25 being sufficient at .thecentral portion of the mass. However, each of, the elements 25, 27 and 28 extend beyond the ends of the bars 23 and are secured together by suitable means indicated at 29 in Figs. 2, 3 and 4. This construction provides a yieldable and yet comparatively thick cushion-like margin extending entirely around the outer edge of the cover. 1n the present instance, the cover is circular, so as to fit snugly `against the cylindrical inner surface of the silo, but it is obvious that a cover of this construction would also fit against the wall of a silo which is polygonal in horizontal section. It is also obvious vthat in order to fit a polygonal silo havingA any given number of sides, the number of bars 23 may correspond to the number of sides of the silo. 1t will be seen, moreover, that this adjustable cover may be only partially collapsed, so :that the diameter is lreduced lfrom the maximum, and the cover may,

therefore be snugly fitted within silos of smallerhorizontal area' than the maximum arearwhich may be covered by this improved adjustable cover. In thus fitting the cover its top formed into conical.V or pyramidal shape, so that the upwardly converging unfto smaller silos than the maximum size for which it vis intended, the ensilage may'have der surface of the cover, may fit snugly upon 'In order that the bars23l may beheld in the different positions describedin the foregoing paragraph, I provide' each of these arms with yan eye-bolt' 30, and I provide a link or flexible element 31 for each vof the eyebolts 30 and secure one end of each element 31,to one of these eye-bolts. The upper end of each elementv31 is connected at 32, by

suitable means, to a sleeve 33 which is slid` able upon the` standard 21, and it is obvious .that by adjusting the sleeve 33 on the standard v21, the bars 23 are correspondingly' ad.- Justed to different positions from radial to approximately horizontal with` relation to y one' another. n'order to hold the sleeve 33 in its different adjusted positions, 4lgproapertures 34, and a bolt l.35 may extend -vide the standard 21 with a plurality of Y through one or the other of these apertures A Vand thus coperate with lthe standard 21 in holding the sleeve 33 in its'uppermost posi! tion shown in Fig. 4, its lowerinost position shown in Fig. 2.0i' in any one of several intermediate positions.

From the foregoing description it is believed to be obvious that I have invented an Vensilage cover of vsuch merit as to make it very popular among users or dealers inL such devices. A

Although have described this embodiment of my invention in minute detail, it

is to be understood that m-y'invention is not limited to these exact details, but that'I am iso entitled' to malnaisu'ch` alterations that do noty constitute departure from: the inventive idea disclosed'herein. 1 'r f .Wlhat l claim asf'myl invention A 'collapsible devicej comprlsi l standard, a 1 plurality' 'of bars, meansy wher by said bars" are movablyconnectedto said'l" standard at" its lower endgla"textileffabric sheetsecuredv 'toI said* ba'r's'` andfmovable-f therewith to and from the folded andopen" positions, a sleevel slidab'le longitudinally of said standard, a plurality of flexible ele/ 5' 2. A collapsible ensilage cover adaptedfto fit against and around the inner surface of a silo wall and comprising a standard, a plurality of bars, means whereby said bars are movably connected to said standard, a textile fabric sheet secured to said bars and movable therewith to and from the folded and open positions, and heat insulating material secured to said textile fabric sheet and extending beyond the free ends of said bars.

3. A collapsible ensilage cover adapted to lit against and around the inner surface of a silo wall and comprising a standard, a plurality of bars, means whereby said bars are movably connected to said standard, a textile fabric sheet secured to said bars and movable therewith to and from the folded and open positions, a second sheet of textile fabric, and heat-insulating material secured to and between the first said textile fabric sheet and the said second sheet of textile marginthereof and terminatinglbetween the central and marginal parts of the rst said sheet.

5. A collapsible cover adapted to fit against and around the inner surface of a silo wall and comprising a sheet of flexible material which is impervious to moisture, and heat-insulating material secured to the marginal portion of the first said sheetyand extending from the margin toward Vthe center of the first said sheet and terminating between said margin and center.

6. A collapsible cover adapted to fit against and around the inner surface of a silo wall and comprising a sheet of flexible material which is impervious to moisture, a second sheet of flexible material secured to the marginal portion of the first said sheet and extending from the margin toward the 7i "1A collapsible/j coverA adapted-l 'toz center' an-d; terminatingv between t said mar 'i e gin 'anfd'center,Y andv heat-insulating 4material' Ij@confined`*between{the first and-'second said f' f-sheetsfff against-I Vand Jaround theinner surface "of va f silo fwa'll and comprisingla sheet zof flexible f- 15' materialwhichV is impervious vrtO moisture,

'l heat-insulating material secured tothe .mar-f f extendingifrem thefmargin toward the' cen'f ff terZ of 'the ffirst "said sheet and terminating L n betwee'nisaid Ymargin and center, land a pluf-v f5 ralityrlf-bar's securedtoisaid'sheetinsiich i t -gool ,stretched and Permit .it t0 be.

movable relation 4to one"- anothei'? as Vtoy hold the latter f8. A collapsible cover adapted to fit against and around the inner surface of a silo wall and comprising a vsheet of flexible material which is impervious to moisture, heat-insulating material secured tothe marginal portion of the first said sheet and extending from the margin toward the center i of the first said sheet and terminating between said margin and center, and a plurality of bars secured to said sheet, and yray diating from the center thereof and movable' v with relation to one another so as to hold said sheet stretched and allow it to be folded in folds that radiate from its center.

9. A collapsible cover adapted to fit against and around 'the inner surface of a silo walll and comprising a sheet of flexible material which is impervious to moisture,

ginal portion of the first said sheet and extending from the margin toward the center of the first said sheet andv terminating between said margin and center, said sheet and heat-insulating material extending av considerable distance beyond the ends of said bars. Y'

l0. A collapsible device vcomprising a standard, a plurality of bars, means whereby said bars are movably connected vto. said standard, a textile fabric sheet secured Vto said bars and movable therewith to and from the folded and open positions, a sleeve slidable longitudinally of said standard, a plurality of flexible elements each connect-y ing one of said bars to said sleeve, and means coperative with said sleeve and standard and flexible elements for holding the cover in its open position, said standard also comprisingmeans whereby said device may be elevated and may be automatically folded in the operation of elevating the t same.

l1. An expansible'and contractible ensi- Y lage cover adapted tofit against and around the inner surface of a silowall and comfv 100 heat-insulating material secured yto the marv each of said hars is so connectedto the lower end o-f said standard that it mayswing 4from i A .lations With respect to said hub; flexible itsradial position toe depending position relative to the lower end of said standard, .exible sheet material ysecured to said bars and extending throughout their-length, and means for holding .each offsaid bars iii-:diffv ferent positions betweenits radial position and its depending position.

12. An .expansible and contraetible ensi-V lage cover adaptedtoit against andaround the inner .surface of a silo Wallendfcomprising. astandard, a hub secured tothe-' lower end oli-said .s tandard,. a pluralityfof bars pivotallr Connected Yto said hub. and

adapted toswing `on their pivots `from a radial lrelation into-different convergent resheet materialsecured to saidbars. andextending `inward and outwardly from the ends thereof, and. means for holding said v `loars yin di'erentconvergent relations. ,Y

lllibtimonywhereof I havehereunto set.

myhidlin the presenoeof @W0 Subscribing Witnesses.

FRED J. FRIEDLEIN. Witnesses:

JiAHLla` GaAs E. SoHoLz.

Copies of this pate-nt may be obtained forvecentseachjby addressing the pmmlesioher ,of Baten.

l washington, ne? s 

